Question

Describe briefly the principle, construction and working of a transformer. Why is its core laminated?

Answer 1

The principle is electromagnetic induction.

Core is laminated to avoid eddy losses

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Answer 2

the principal of transformer is:--

• faraday law of electromagnetic induction.
• faraday law of electromagnetism state that :-
• The electromotive force around a closed path is equal to the negative of the time rate of change of the magnetic flux enclosed by the path.
• magnetic flux is denoted by -fi.
• fi = Bvector. Avector dot product.
• Its core is laminated because :-
• The score is eliminated to reduce this to a minimum as they interface with the efficient transfer of energy from the primary coil to the secondary coil.
• eddyd current cause energy to feed off from the transformer dey reduce meaning electrical energy invested into heat energy.

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